class_docstr: Quick check for Python features we know we don't support.
  
  Any features detected will cause AutoGraph to not compile a function.
code: def visit_While(self, node):
      if node.orelse:
          raise errors.UnsupportedLanguageElementError(
              "while/else statement not yet supported"
          )
      self.generic_visit(node)
  
file_path: DALI/dali/python/nvidia/dali/_autograph/core/unsupported_features_checker.py
imports: import gast
  from nvidia.dali._autograph.pyct import errors
label_desc: Use image node_id 3 for calling the UnsupportedFeaturesChecker obj's underlying member method code with example usage: obj.visit_While(node) without return types